Chicago Bears’ running back Matt Forte has been through four offensive coordinators during his six seasons in Chicago. Though his production has been consistent, the Bears’ offense has not.

But last season, the offensive line improved. Martellus Bennett, Alshon Jeffery and Brandon Marshall helped transform the passing game. And Forte ranked second in the league for yardage. In fact, the offense was tied with the Patriots for second among the league’s highest-scoring offenses.

You can’t blame Forte for being optimistic about what the Bears can accomplish this season.

“If we keep working hard, we’re going to take this offense, hopefully, to the top of the league,” Forte said to the Chicago Tribune. “There’s no ceiling. There’s no limit that you can put on it.”

Jay Cutler missed several games last season with injuries. He hasn’t played a full season since 2009, and the Bears have untested Jordan Palmer backing him up after Josh McCown signed with Tampa Bay for a possible starting job.

Before the injuries, Cutler was on track for a big year. In seven of the 11 games he played in, Cutler had a passer rating above 90. His interceptions and sacks were down from the previous year, and he had multiple weapons in Marshall, Bennett and Jeffery.

Now, the Bears are in their second season under head coach Marc Trestman and Kromer. They are even more comfortable in the offense.